/*
*  Copyright 2018, Sebastian Pütz
*
*  Redistribution and use in source and binary forms, with or without
*  modification, are permitted provided that the following conditions
*  are met:
*
*  1. Redistributions of source code must retain the above copyright
*     notice, this list of conditions and the following disclaimer.
*
*  2. Redistributions in binary form must reproduce the above
*     copyright notice, this list of conditions and the following
*     disclaimer in the documentation and/or other materials provided
*     with the distribution.
*
*  3. Neither the name of the copyright holder nor the names of its
*     contributors may be used to endorse or promote products derived
*     from this software without specific prior written permission.
*
*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
*  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
*  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
*  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
*  COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
*  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
*  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
*  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
*  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
*  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
*  ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
*  POSSIBILITY OF SUCH DAMAGE.
*
*  abstract_plugin_manager.h
*
*  author: Sebastian Pütz <spuetz@uni-osnabrueck.de>
*
*/

#ifndef MBF_ABSTRACT_NAV__ABSTRACT_PLUGIN_MANAGER_H_
#define MBF_ABSTRACT_NAV__ABSTRACT_PLUGIN_MANAGER_H_

#include <boost/function.hpp>

namespace mbf_abstract_nav
{

template<typename PluginType>
class AbstractPluginManager
{
public:

    typedef boost::function<typename PluginType::Ptr(const std::string &plugin)> loadPluginFunction;
    typedef boost::function<bool(const std::string &name,
                                 const typename PluginType::Ptr &plugin_ptr)> initPluginFunction;

    AbstractPluginManager(const std::string &param_name,
                          const loadPluginFunction &loadPlugin,
                          const initPluginFunction &initPlugin);

    bool loadPlugins();

    bool hasPlugin(const std::string &name);

    std::string getType(const std::string &name);

    const std::vector<std::string> &getLoadedNames();

    typename PluginType::Ptr getPlugin(const std::string &name);

    void clearPlugins();

protected:
    std::map<std::string, typename PluginType::Ptr> plugins_;
    std::map<std::string, std::string> plugins_type_;
    std::vector<std::string> names_;
    const std::string param_name_;
    const loadPluginFunction loadPlugin_;
    const initPluginFunction initPlugin_;
};

} /* namespace mbf_abstract_nav */

#include "impl/abstract_plugin_manager.tcc"

#endif /* MBF_ABSTRACT_NAV__ABSTRACT_PLUGIN_MANAGER_H_ */
